Kon-Boot - Kon-Boot is a password hacking, password recovery tool for Windows and Mac.
MunSoft Online Recovery - MunSoft Online Recovery service can be used for free to recover data from damaged files.
John the Ripper - A fast password cracker for Unix, macOS, Windows, DOS, BeOS, and OpenVMS
Kernel for Excel Repair - Kernel for Excel Repair tool successfully repairs corrupted single or multiple XLS/XLSX file without modifying original file formatting and attributes.
Password Recovery Bundle - Quickly recover or reset passwords for Windows, PDF, ZIP, RAR, Office Word/Excel/PowerPoint documents. Retrieve passwords for instant messengers, email accounts, web browsers, FTP logins, and more.
Office Recovery - Data recovery software for corrupted email, databases, office productivity applications and media. Dozens of supported formats include Microsoft Office, SQL Server and Exchange Server files. Free demo downloads.